001    /*
002     * Sonar, open source software quality management tool.
003     * Copyright (C) 2008-2012 SonarSource
004     * mailto:contact AT sonarsource DOT com
005     *
006     * Sonar is free software; you can redistribute it and/or
007     * modify it under the terms of the GNU Lesser General Public
008     * License as published by the Free Software Foundation; either
009     * version 3 of the License, or (at your option) any later version.
010     *
011     * Sonar is distributed in the hope that it will be useful,
012     * but WITHOUT ANY WARRANTY; without even the implied warranty of
013     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014     * Lesser General Public License for more details.
015     *
016     * You should have received a copy of the GNU Lesser General Public
017     * License along with Sonar; if not, write to the Free Software
018     * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02
019     */
020    
021    package org.sonar.java.squid.check;
022    
023    import org.sonar.check.Priority;
024    import org.sonar.check.Rule;
025    import org.sonar.squid.api.CheckMessage;
026    import org.sonar.squid.api.SourceFile;
027    import org.sonar.squid.measures.Metric;
028    
029    @Rule(key = "EmptyFile", priority = Priority.MAJOR)
030    public final class EmptyFileCheck extends SquidCheck {
031    
032      @Override
033      public void visitFile(SourceFile file) {
034        int loc = file.getInt(Metric.LINES_OF_CODE);
035        if (loc == 0) {
036          CheckMessage message = new CheckMessage(this, "This Java file is empty");
037          file.log(message);
038        }
039      }
040    
041    }